/// Only print entries beginning with the given command
    #[structopt(short, long)]
    command: Option<String>,

        let entries = store::new(args.data_dir.data_dir)
            .get_nth_entries(Some(&hostname), args.entries_count)?;

        let entries = store::new(args.data_dir.data_dir).get_entries(
            Some(&hostname),
            args.entries_count,
            args.command,
        )?;

    pub fn get_nth_entries(

    pub fn get_entries(

        command_filter: Option<String>,

        let entries = entries.into_iter().rev().take(count).rev().collect();

        let entries = entries
            .into_iter()
            .filter(|entry| {
                if let Some(ref command) = command_filter {
                    entry.command.starts_with(command)
                } else {
                    true
                }
            })
            .collect::<Vec<_>>()
            .into_iter()
            .rev()
            .take(count)
            .rev()
            .collect();